Machine for makgnq shells



- (No Model.) 3 Sheets-Sheet 1.

0. D.- KENNEDY. MACHINE FOR MAKING SHELLS. No. 439,820. Patented Nov. 4, 1890.

ND Model I a sheets-sheet 2.

O. D. KENNEDY.

MACHINE FOR MAKING SHELLS, N0. 439,820. 4 Patented Nov. 4, 1890.

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(No Model.)

O. D. KENNEDY. MACHINE FOR MAKING SHELLS.

Patented Nov. 4, 1890.

3 'UNITED STATES PATENT OFFIC CHARLES D. KENNEDY, OF CALIFORNIA CITY, CALIFORNIA.

mica-ems non MAKme SHELLS.

5ECIFICATIQN forming part of Letters $83.91? No. $89 ,820, dated November 4, 1890. Application filed Tune 24, 1890. Serial No. 356.548- (ll'o model-l To all whom, it may concern:

Be it known that I, CHARLES D. KENNEDY, a citizen of the United States, residing at California City, Marin county, State of California,have invented an Improvement in Ma.- chines for Making Shells; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of shellmaking machines specially adapted for the making of paper shells in which material ispacked-such as powder.

My invention consists in the novel constructions, combinations, and arrangements hereinafter fully described, and specifically pointed out in the claims.

The object of our invention is to provide a simple and effective machine which shall roll the sheet into cylindrical form, twist one end of the cylinder into a bottom for the shell, and remove and discharge the completed shell.

Referring to the accompanying drawings for a more complete explanation of my invention, Figure 1 is a side elevation of my machine. Fig. 2 is an end view. Fig. 3 is a vertical section of the twisting mechanism. Fig.

4 is a. side elevation of the same. Fig. 5 is a perspective view of a completed shell.

A is the frame of the machine, havinga top a. Mounted in a vertically-movable frame I), which is adapted to operate through the top of the frame, are horizontal parallel frictionroller B, of rubber or other suitable material.

In bearings c on the top ais mounted a hollow or tubular shaft C, the end 0' of which constitutes the former and projects directly or or an d parallel with the friction-rollers B. The operation of these parts is as follows: The friction-rollers B are raised up aftert-hc end. of the sheet is fed to them, so as to bind said end between them and the formerc. The

shaftO is rotated, whereby the forum winds up the paper upon itself as many tin g as may be desiraable to make the shell complete and stiff enough.

The vertical movement is givcnt the Erietion-rollers by the following mec in". The lower end of the frame b rests tape... a pivoted trip-bar I). having a cam L on the'undorsidc of which the upper end of a pivoted gravitylever b impinges. Mounted in the Liner portion of the frame is the driveshaft D, having upon it a cam d, which is adapted to come in contact with the lower end of the lever 5 When this contact occurs, as is shown in Fig. 2, the lever is vibrated, so that its upper end removes itself from the cam b of the trip-bar 6', thereby allowing said bar to drop down, and consequently the frame I) and the rollers B, which it carries, drop down. As soon as the cam (1' passes the lover I) said lever swings back to a perpendicular by the weight of its lower end, whereby its upper end, coming again under the cam b raises the swinging trip-bar b, which raises the frame b and the friction-rollers B. A rotary motion is imparted to the former by means of a pulley c on the shaft 0, from which a belt 0 extends to a pulley d on the drive-shaft D.

\V hen the paper cylinder or shell is formed it is necessary to twist one end of it to make a bottom for the shell. This is eifected by the mechanism which is shown in sectional detail in Fig. 3. Suitably secured by its bottom to a standard a, rising from the top a, is a ring E. Upon this ring and adapted to move upon it as an axis is a movable ring F. The inner or stationary ring has an opening a at one side, and the outer or movable ring has a corresponding opening f in its side, and these openings admit the projecting end of the paper to the hollow center of the inner ring, as it winds up about the former, as heretofore described.

Pivote'd at g in the inner or stationary ring E are the twister-arms G, the outer ends of which pass into sockets in the movable ringdo not interfere with the proper forming of the cylindrical shell. Now, it will be seen that if the outer or movable ringF be moved upon. the inner or stationary ring E it will turn the twister-arms upon their pivotal centers,thereby throwing their inner ends di rectly to the center of the device, as is shown by the dotted lines in Fig.3. As the project ing end of the paper shell lies within this center, these arms, when their projected inward- When released of the cam, the arm'H returns to its vertical. position, and the ring F, returning, withdraws the twister-arms into their seats; Now, in order to press'this twisted bottom of the shell into shape,and also to remove the shell from the former and discharge it, I have-the following mechanism.

' Passing through-the hollow shaft. 0 and the former-c is a push-rod I, the inner. end 2' of which-lies within the former, and is adapted to fit within the bottom of the shell. This rod-is mounted so as to have a sliding longitudinal motion, and is provided with the springJ to return it to position; Mounted in suitable standards a on the table-top is a slide-bar. K,the end of which opposes the end i of the, push-rod I. The push-rod I, when the twistenarms heretofore described have operated upon and formed the bottom of the shellpis projected so that the formed bottom of. the shellis clamped between its end 2' and the opposing end of the slide-bar K, and is thereby pressedinto shape. The push-rod I continues .its movement, the slide-bar K yielding before it so that the entire shell clamped by its bottom between the push-rod and slidebar-.is drawn off of the former a over to the leftuntil it is completely free of said former. This movement of the push-rod I is effected by means of a cordL, which isv attached at its outer end to an arm 2" of the push-rod, and thence passing over a suitable guide-pulley Z has its lower end connected with a crank-pin m on arot-ary disk M below. When the limit of thismovement is reached and the disk M is released or tripped, as will presently be described, then the spring J rapidly returns the push-rod, withdrawing it from the shell, and whenwholly withdrawn said shell drops downthrough an opening in the. table-top. The slide-barK now returns to its normal positionby means, of the cord N, which is secured at itsupper end to an arm is of said slide-rod and atits lower end to the strap 0 of aneccentrio 0, mounted upon the power-shaftD. The outward movement of the slid e-bar is due to thepush, ;0f the red I, but its return movement is due to the cord N.

The disk M is tripped by the following mechanism: Referring to Figs. 1 and 2, it will be seen that the disk is mounted freely upon the outer end of the shaft D, and. is provided with aperipheral inwardly-extending flange m. Securely fixed to the shaft D just within the disk Mis a disk'P, which carries in its rim .a pivoted catch-bar p, the outer end of- Patent, is-

which extends into a groove m 'in thefiange m of the disk M. This groove-atone portion, as is shown in Fig. 2, has a projection m, which when the catch p comes in contact with it eifects the engagement of the two disks, whereby the outer disk M is partially rotated. Upon theside of the table, as shown in Fig. '1, is a fixed trip-pin Q, and with this the inner end of thecatch p is adapted to come in contact, whereby its outer end is re-' leased from the projection m in the groove m of the disk M, thereby freeing said disk and allowing it to return, under the power of the spring J, as heretofore described.

The general operation of the machine is .therefore as follows: The end of the paper or other sheet from which the shell is to be made .is first placed. with .itsedge resting upon the" friction-rollers B. These rollers are now raised so as to bind the sheet between themselves and the former c, and as said former. rotates the sheet is wound into cylindrical form upon it. As soon as the cylinder is formed-the.

twister-arms twist its bottom into shape and im mediately release. it. Thereupon the push: I rodI presses the bottom between its endw' and the opposing end of the slide-bar K, and

,continuing this pressure the push-rod carries the entire shell 01f the former over to one side. As soon as it is free, the push-rod, which .is slightly smaller than t e inner. diameter of the shell, springs backout of the shell, which thereupon drops down, and the slide-bar. K returns to its'no'rmalposition.

Although I have here spoken of the former .c" as being the end of the shaftfC, it is evident that for difierent sizes of cylinders I may slip suitably-sized tubes upon said end, and they would thus become the formers.

' Having thus described my invention, what.

I claim as new, and desire to secure by Letters 1. In a machine for making shells, the combination of the rotating former, the frictionrolls B below said former, and the means-for raising and lowering said rolls, consisting of the vertically-movable frame-in which they.

are mounted, the swinging trip-bar sustaining the lower end of the frame and having a cam b the pivoted gravity-lever b having its upper end operating under the cam 12?, the rotary shaft D, and its contact-cam d for vibrating the lever, substantially as herein described.

2. In a machine for making shells, the combination of the hollow or tubular rotary former, the sliding push-rod. operating through said former, and the opposing slide-bar opposite the end of the push-bar, whereby the shell is removed from the'former and discharged, substantially as herein described.

3. In amachine for making shells,'the rotary former about which the sheet is wound,

and twister-arms for twisting one-end of the shell to form its bottom, substantially as herein described.

4. In a machine for making shells, the com 489,820 g t a bination of the hollow or tubular rotary former, the sliding push-rod operating through said former, and twister-arms at the end of the shell for twisting one end thereof and forming the bottom, substantially as herein described. a t

5. In a machine for making shells, the combination of the tubular rotary former, twisterarmsfor twisting one end of the shell and forming its bottom, the sliding push-rodopcrating through the former against the inner surface of the bottom of the shell, and the opposing sliding bar K, operating against the outer surface of the bottom of the shell, substantially as herein described.

6. In a machine for making shells, the device for twisting the end thereof to form the bottom, consisting of theinnerfixed ring, the

outer movable ring, and the twister-arms pivoted to and seated in the inner ring and having their outer ends pivoted in the movable ring, substantially as herein described.

7. In a machine for making shells, the device for twisting one end thereof to form'its bottom, consisting of the inner or fixed ring E, having an opening at one side, the outer movable ring F, having a corresponding opening to admit the end of the shell to the hollow center of the inner ring, and the twister-arms pivoted and seated in the inner ring and having their outer ends pivoted ,in the movable ring, substantially as herein described.

8. In a machine for making shells, the device for twisting the end of the shell and forming its bottom, consisting of the fixed inner ring, the movable outer ring, the twister-t arms pivoted in. the inner ring and having their outer ends-pivoted to the outer ring, the downwardly-extending arm of the outer ring, the rotary drive-shaft, and the contact-cam of said shaft operating against the arm whereby the outer ring is moved, substantially as herein described.

9. In a machine for nyaking shells, the com: bination of the rotary former about which the sheet is wound to form the shell, and the device for twisting the end of the shell to form its bottom, consisting of the inner fixed ring E, having a side.opening,-the outer movable ring F, having a corresponding side opening,

and the twistenarms pivoted to and seated in the inner ring and having their outer ends pivoted in the outer ring, substantially as 11. In a machine for making shells, they tubular former,in combination with the sliding push-rod operating through said former,

and the 'meansfor operating the push-rod,

consisting of the cord L, secured to it, the rotary diskM, having acrank connected with the cord, the inner disk P, having a catch engaging the disk M, the trip-pin Q, for releas ing the catch, and the spring J, for returning the rod, substantially as herein described.

12. In a machine for making shells, the tubular rotary former,in combination with the reciprocating push-rod operating through it, the opposing slide-bar K, and themeans for returning the slide-bar, consisting of the cord N, the eccentric O, the power-shaft D, and eccentric-strap 0, substantially as herein described. 13. A machine for making shells, comprising a tubular rotary former, vertically-mow able friction-rollers under said former, a reciprocating push-rod operating through the former, twister-arms at one end of the shell for forming its bottom, and a slide-bar betweenwhich and the end of the push-rod the bottom of the shell; is clamped and said shell removed from the former and discharged, substantially as herein described.

In witness whereof I have hereunto set my hand.

CHARLES D. KENNEDY.

Witnesses; Y S. IT. NOURSE, II. 0. LEE. 

